Art of separating various materials from gases.



W. J. BALDWIN. ABT 0F SEPAATING VARIOUS MATERIALS FROM GASES.

APPLIOATION FILED 10V. 25. 1907. 950,607. Patente@ Mar. 1, 1910.

11 0 llnk IIIIIIII of the mud which do not-.pass through the drops into a suitable collector. Part of the certain new and useful Improvements in the WILLIAM J. BALDWIN,

'or NEW YORK, N. Y.

ART 0F SEPARATING VARIOUS MATERIALS FROM GASES. i

Specification of Letters Patent.

Patented Mar. N1, 1910.

Application alea November 25, 1907. serial No. 403,757.

lo all whom 'it may concern:

Be it known that I, IVILLIAu J. BALDWIN, a citizen of the United States of America, and a resident `of the borough of Brooklyn, city and State of New York, have invented Art `of Separating Various Materials from (rases, of which the following is a specification.

This 4invention relates to the art of separating various materials from gases.

The present application relates particularly to the process for effecting such separation, the preferred forms of apparatus for operating the said process being set forth 1n another of my applications, iled in the United States Patent Ottico on September 26. 1907, Serial Number 394,653.

.The purpose of the invention is to provide a process for the separation of various materials from air and other gases, as well' when said materials are condensable matters as when they 'are similar to particles of unconsumed carbon in smoke, dust in air, sawdust in the air of saw-mills, and the materials in gases in all other cases when their removal is desirable.

T he process consists essentially in illtroduclng Ainto the air or other gas which con-l tains the materials to be removed a suitable fluid, preferably in the form of spray, and including water, oil, steam, and other suitable liquids, whereby the said fluid mixing with the materials to be removed forms what I term "inud, and projecting the mud along w1ththe gas in which the mud is con tained agamst a separating member, such as a perforate screen, diaphragm, wall, part1t1on or other se arating member, and for sake of brevity, hereinafterV designate all such. perforate screens, diaphragms, walls, partitions and separating members by the genenc term,s"creen`. Some ofthe mud will. pass through the openings in the screen by lts own momentum, and those portions screen, will soon be'forced through by the pressure of the gas which is proJected against the screen along with the mud. Having passed through the screen, the mud gas will not go through the screen, but will be freed from the mud, since that has passed through, or adhered to, the screen, and this portion of the gas isA removed from the space on the inner side of the screen, and is Since the operation of the process is not. limited to any particular form or construction of apparatus, and since, as hereinbefore stated, various forms of apparatus are set forth in my other said application, Serial Number 394,653, filed September 26, 1907,

I hereinafter illustrate and describe only one form of apparatus which may be employed in the operation of the process, in order to the more clearly explain how said process may be performed.

Referring to the drawings which accompany the specification to aid the description, and which drawings illustrate the preferred form of apparatus, particularly when the process is to be applied to the preventing of smokev nuisance; Figure 1 is avertical section of apparatus for operating. the process, and Fig. 2 is a section thereof yon the line Q2 of Fig. 1.

A is a chamber provided with the `inlet a and outlet I). C is a fan on a shaft d, which is driven from any suitable motor. E is a perforate screen, such as wire mesh relatively coarse so as to all'w the largest partil wvalve g, de ivers water or other Huid `into said case A in the vicinity of the blades c of said fan C, and the Velocity of said fan sprays the Huid all around within the screen E and also hurls the spray against said screen. A mud collector H may be conveniently formed as the lower part of said case A, a shelf It being preferably employed to direct the fall of the mud into the collector away from the end of the connection I, which is preferably employed to connect the air space above the liquid and mud with the said inlet a, a valve controlling said connection I. I- also prefier to provide annected around into the outlet b or led to any other place as desired.

In operation, the air or gas containing the Q Amaterials to be removed, as the products of combustion from a furnace, entering' thcv case Avencounters the fluid from pipe (5r,

and the gas,

materials and Huid are whirled around by the fan F, the materials being converted into mud by the fluid, and 'the gas and mud arev projected by the centrifugal torce of the whirling motion against said screen E, the very ine particles which might v otherwise be impossible to separate sticking together in appreciable masses because of the fluid, and being projected through the said screen E. If any of the mud does not go through tl-ie -said screen at once, it trickles down said screen and is soon forced through by the pressure of the gas. When the mud has passed through the sai-d screen E it drops and trickles down into the collector H, and is from time to time removed through openings provided for the purpose. -Y More or less ofthe gas will immediately sweep around'the said screen E, and being clear of its heavy materials, which adhered to or passed through the said screen, will go by the outlet b to the chimney or other desired place. The amoui'it of gas which passes throughthe' saidyscreen E is regulated by the degree to which vthe closures on the connec tions I and K are opened, and this partofthe gas also becomes free from the heavy materials by the trickling and dropping of the mud into the said collector H.' Any part of the gas which passed through the said diaphragm E may be delivered into the inlet a or allowed to pass out by the connection K, according to the relativeopening of the closures on said connections I and K.

AssumiugthatV the materials to be separated are of a condensable nature, such as the tai-ry vapors produced in the manufacture ot'V coal gas, it will b e manifest that when the said vapors enter the chamber A,

they will be condensed by the entering fluid from pipe Gr, and projected against the screen in a viscid form which I term mud and the separation of the mud from the gas f will then be eected in the manner hereinbefore described.

Now having described niy improvements, I claim as iny invention.

l. The process of separating materials from gases, which consists in mixing a fluid with the materials, projecting the mixture and the gas against a perforate screen and thereby forcing the mixture and part of the gas through the screen, removing the part ot the gas which did not' pass through the screen from the inner side of the screen, separating the mixture outside the Screen from the gas which passed therethrough, and rcmoving said gasfroin said separated mixture. l

2. The process of separating materials from gases, which consists 1n mixing a fluid with the materials, projecting the gas and mixture against a perorate screen and thereby forcing the mixture and part of the gas through said screen, removing the part of the gas which did not pass through the screen from the inner side of the screen, separating the mixture outside of the screen Afrom the gas which passed through the screen, and returning the gas which passed through the screen into the gas which is to be treated. l

3. The process of separating materials .from gases,.which consists in projecting the gas containing the material against a screen, and thereby forcing the said material and part of the gas through said screen, removing the gas which did not pass through said screen from the inner side thereof, and returning the gas which passed through the screen into the gas which is to be treated.

Signed at New York city this 23rd day` of November 1907.

- .WILLIAM J BALDWIN. Witnesses:

H. V. BROWN,

WALTER N. Harms.4 

